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How sub-kelvin cooling and cryogenic wiring work
Written for the people who have to choose a cooling method and defend the choice: what each approach does, what it costs to run, and where it fits.
The explainers
Helium-3-free cooling
Why helium-3 is scarce, and how magnetic cooling reaches below one kelvin without it.
ReadADR vs dilution refrigerator
Two routes below one kelvin compared: physics, temperature range, operation and running cost.
ReadCryogenic wiring explained
Why the wiring is often the limit of a cryostat, and what flexible cryogenic cables change.
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